[Diagnostic algorithms of morphological parameters of the thymus gland in the development of various diseases in premature infants].

The authors have investigated the morphological and morphometrical signs of thymus glands in prematurely born children died of different causes and worked out the algorithm of morphological signs coming along with this or that pathology. It was shown, that weight and weighting coefficient of the thymus gland correlate with degree of child prematurity and different causes of death. Drawing up the algorithm of the morphological changes to determine pathology of a thymus gland gave us an opportunity to establish criteria of normal development of a thymus gland and its developmental lagging, hypoplasia, dysplasia, premature atrophy against a background of incomplete pregnancy and different diseases.

[Diagnosis and treatment of recurrences of peptic ulcer after selective proximal vagotomy].

Selective proximal vagotomy (SPV) was performed in 658 patients. Recurrent ulcer was revealed in 6.2% of them.

[Comparative characteristics of arteriosclerosis of the aorta, subclavian, iliac and femoral arteries in the populations of Riga and Samarkand].

Visual-planimetric evaluation of atherosclerosis of the aorta, subclavian, iliac, and femoral arteries in men of 50--64 who had died in Riga and Samarkand was carried out. The values characterizing the extent and severity of atherosclerosis of these arteries in the indigenous and non-indigenous population of these cities were calculated. Differences in the morphological features and course of atherosclerosis of arteries of the extremities in relation to the place of residence were established.

[Various aspects of the pathogenesis of arteriosclerosis in the light of data of geographic pathology].

An analysis of 9.550 autopsies of males, aged 10 to 69 years, demonstrated that the time and incidence of the appearance of lipid spots did not depend on the place of residence and ethnic characteristics of the person, while the appearance and further progressive development of fibrous plaques and other more severe kinds of atherosclerotic changes varied greatly from one geographic zone and ethnic group to other. The results of the study of different stages of atherosclerosis and the analysis of literature data support our earlier concept that indicates that fibrous plaques do not necessarily develop from lipid spots, and the latter do not necessarily transform into fibrous plaques.